[ \frac2x1-x = 7 \implies 2x = 7(1-x) \implies 2x = 7 - 7x \implies 9x = 7 \implies x = \frac79 \approx 0,778 ]
| Zat | Awal (mol) | Reaksi (mol) | Setimbang (mol) | | --- | --- | --- | --- | | ( PCl_5 ) | 2 | -1 | 1 | | ( PCl_3 ) | 0 | +1 | 1 | | ( Cl_2 ) | 0 | +1 | 1 | soal dan pembahasan kesetimbangan kimia